PHOTOS: One Man Dead After Transport Truck Crash Near Milton

A 45-year-old man from Richmond Hill has died following a transport truck collision near Milton.

OPP Sgt. Kerry Schmidt recently reported that officers and emergency crews are on scene at a multi-vehicle collision involving three transport trucks on the eastbound 401 in Mississauga.

Initial reports said the collision, which took place between Winston Churchill Blvd. and Mississauga Rd., involved just two transport trucks.

Schmidt said that all eastbound lanes remain closed at Winston Churchill Blvd.

The westbound side of the 401 is open, but traffic is heavy due to the visual distraction.

In a video posted to Twitter, Schmidt says one vehicle (which appears to haul gravel), smashed into the back of a tractor trailer hauling camper trailers. That tractor trailer then collided with another truck.

The crash occurred shortly before noon today (June 26).

It is not yet known what might have prompted the crash.

"This happened on a very flat stretch of highway, the roads are dry, the sky is clear," says Schmidt. "We're going to be looking into all the possible scenarios that could have contributed to this collision, whether or not there were any mechanical defects that could have contributed."

The OPP collision reconstruction team is currently investigating.

Lanes in the area will remain closed for at least two to three more hours, Schmidt says.